<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>002-运行错误.html</title>
</head>
<body>
	
</body>
<script>
	// console.log(a);
	var a = 1;
	// a();
	function fn(){
		fn()
	}
	fn()
</script>
</html>